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Finding the Fourth Proportional to 484,386.83, 668,453.83 and 269,540.73

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Solution

The fourth proportional to 484,386.83, 668,453.83 and 269,540.73 is: 371,966.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,386.83 : 668,453.83 = 269,540.73 : x
  2. Step 2: Convert to fraction form
    484,386.83/668,453.83 = 269,540.73/x
  3. Step 3: Cross multiply
    484,386.83x = 668,453.83 × 269,540.73
  4. Step 4: Simplify right side
    484,386.83x = 180,175,531,961.79
  5. Step 5: Solve for x
    x = 180,175,531,961.79/484,386.83
  6. Step 6: Final answer
    x = 371,966.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.